<!DOCTYPE html>
<div style="columns:2;">
    <span>
        <div id="troublemaker"></div>
    </span>
    <div id="wannaBeFloat">
        <div style="column-span:all;"><br></div>
    </div>
</div>
<script src="../../../resources/testharness.js"></script>
<script src="../../../resources/testharnessreport.js"></script>
<script>
test(() => {
    var wannaBeFloat = document.getElementById("wannaBeFloat");
    var troublemaker = document.getElementById("troublemaker");
    document.body.offsetTop;
    wannaBeFloat.style.cssFloat = "left";
    document.body.offsetTop;
    troublemaker.style.display = "none";
}, "No crash or assertion failure.");
</script>
